Home / 1,317.12-1,972.44-1,060.08

Finding the Fourth Proportional to 1,317.12, 1,972.44 and 1,060.08

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Solution

The fourth proportional to 1,317.12, 1,972.44 and 1,060.08 is: 1,587.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.12 : 1,972.44 = 1,060.08 : x
  2. Step 2: Convert to fraction form
    1,317.12/1,972.44 = 1,060.08/x
  3. Step 3: Cross multiply
    1,317.12x = 1,972.44 × 1,060.08
  4. Step 4: Simplify right side
    1,317.12x = 2,090,944.20
  5. Step 5: Solve for x
    x = 2,090,944.20/1,317.12
  6. Step 6: Final answer
    x = 1,587.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.